Scrubbing-machine.



PATENTED JULY 3, 1906. E; J. STEWART.

SGRUBBING MACHINE.

APPLICATION FILED JUNE 8. 1904.

6 SHEETS-SHEET 1.

No. 824,958. I PATENTED JULY 3, 1906.

E. J. STEWART.

SGRUBBING MAGHINE.

APPLICATION FILED JUNE 8. 1904.

5 SHEETSSHEET 2.

No. 824,958. PATENTED JULY 3, 1906. E. J. STEWART.

SGRUBBING MACHINE.

APPLICATION FILED JUNE-8, 1904,

5 SHEETS-SHEET 3.

PATENTED JULY 3, 1906.

E. J. STEWART.

SGRUBBING MACHINE.

APPLICATION FILED JUNE 8, 1904.

5 SHEETS-SHEET 4.

No. 824,958. PATENTED JULY s, 1906. E. J. STEWART. SGBUBBING MACHINE.

APPLICATION FILED JUNEB. 1904.

5 SHEETSSHEET 5.

-oliuilw ll I-..

UNTTED STATES EMMOR J. STEWART,

OF NEW YORK, J. Y.

SGRUBEtlNG-MAGHENE.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed June 8,1904- Serial No. 211,623.

['0 a whom it may concern.-

Be it known that I, EMMOR J. STEWART, a citizen of the United States, residing at New York city, borough of Manhattan, and State of New York, have invented certain new and useful Improvements in Scrubbing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to. which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

My invention relates to scrubbing-machines; and it has for its object to provide means for propelling the machine by mechan ical power and like means to simultaneously rotate a scrubbing-brush and operate a mop and wringing device, means whereby the entire structure may be thrown into and out of operation at will; and it further consists of such details of construction and the operation of parts as will be hereinafter described and claimed.

Referring to the drawings, in which like parts are similarly designated, Figure 1 is a side elevation, parts being broken away, of the entire machine. Fig. 2 is an elevation of the opposite side. Fig. 3 is a front view. F ig. 4 is a plan-view of the reversible guidcframe for the mop. Fig. 5 is an end view of the same. Fig. 6 is a vertical section taken just behind the motor-shaft and looking forward. Fig. 7 is an enlarged detail side view of the means for adjusting the rollers of the reversible frame. Fig. 8 is a plan of Fig. 7. Fig. 9 is an enlarged detail elevation of one side of the mop frame mounted in the tank, the latter being shown in vertical section. Fig. 10 is an enlarged detail plan view of the clutch and its operating-lever. Fig. 11 is a detail view of a spring for holding the clutch-operating lever in position.

The numeral 1 designates a rectangular frame, preferably made of metal, having depending arms 2, one on each side. In the lower ends of said arms is mounted an, axle 3, to which are secured two traction-wheels 4 5, and on the end of said axle next to wheel 4 is secured a sprocket-wheel 6. These wheels 4 and 5 support the forward end of the frame Land the rear end issupported by a casterwheel 54, mounted in aforked standard 8, swivelcd in a socket 7, depending from a each side of the motor and passes through and is supported by brackets 12 and 13. On said armature-shaft 11 is pivoted two arms 14, connected by crossed braces 15 and 16, the ends of the arms 14 being provided with bosses 17, that form supports for a frame car rying splash-boards or fenders 18 and journals for the ends of an axle 19 of a rotary scrubbing-brush 20. The axle 19 of the brush is extended through one of the bosses 17 to receive a sprocket-wheel 20*, which. is connected by a drive-chain 21 with a sprocketwheel 22 on the armature-shaft 11.

On the end of the armature-shaft opposite the wheel 22 is fixed a gear-wheel 23, carrying a clutch member 24, Fig. 10, and loose on this shaft is a shifting spool 26, carrying complementary clutch member 25, a sprocketwheel 27, and a ear-wheel 28. The traction-wheels 4 ano 5 are propelled through the medium of a chain 29, connecting the sprocket-wheel (3 on the traction-wheel shaft with the sprocket-wheel 27 on the armatureshaft. The gear-wheel '23 meshes with a transfer-pinion 32, mounted on a stub-shaft 32, journaled in a bearing 32*, mounted on the top of one of the side pieces of the rectangular frame. This pinion 23, through the medium of transfer-pinion 32, drives a pinion 33 on a shaft 34, j ournaled in two sides plates 43, secured to the side pieces 1, and said shaft also carries a gear-wheel 35, and when the clutch members are engaged, as shown in Fig. 3, wheels 28 and 35 are out of gear and motion is communicated through chain 29 directlyfrom the motor-shaft to the tractionwheel shaft and the machine is driven in the same direction as the 1not0r-shaft. On throwing the clutch out of gear wheel 28 when thrown far enough over will engage wheel 35 and with the sprocket-wheel 27 be indirectly driven from thearmature-shaft 11 in a reverse direction through gears 23, 32, 33, and 35.

For shifting the clutch member I provide a hand-operated angle-lever 30, Fig. 10, i'ulcrumed on a bracket secured-to one of the arms 14. A spring 30 mounted onv top of the arm, forms between its center and two ends two pockets or recesses 30" and 30,

ICO

. ing roller 40. T he shaft 39 projects through plates.

the shafts may be shiftedin' the slots 57,

the plates 43 and is journaled in bearingpieces 41, supported on the frame and adapted to be raised and lowered, bymeans of screws 42, to movethe lower roller to and from the fixed roller, so that mops of different thickness may be used. Pockets 44 are preferably formed on the plates 43,-in'to which the ends of bearing-pieces 41 project for the purpose of protection.

A receiving-tank 45, preferably constructed with curved ends and provided with a drawoff aperture having a screw-plug 46 in its bottom, is secured to the plates 43.

On each side of the frame 1 are two depending hooks 47 to receive a bail 48 of a receiving-pail 49 or other receptacle. A pipe 50, preferably afleXible one, connects each pail with the receiving-tank near its top,

whereby the water may be drained from the tank into the pails, and sufficient space is provided between the pails for the free movernent of the caster-wheel 8.

My mop-guide frame is reversible and portable and may be easily and readily removed from the receiving-tank 45 for the purpose of cleaning it and the tank, as will be hereinafter explained. It consists of two plates 51, having ends curved alike, Figs. 4 to" 8", joined centrally by a bar 52, rectangular in section and having rounded ends. These plates are connected to the bar byangle-plates 53, thus forming a rigid frame. J ournaled in and extending between the plates 51 are two cleanlug-brushes 54. On the axle of each brush on the outsideof one late is a gear 55 and a sprocket-wheel 56. s shown in Figs. 7 and 8, a slot 57 is formed. in each end of the plates '51, through which the ends of shafts 59 of roller 59 project. These shafts also project through theends of a yoke 58, which straddles each end of the plates 51, and each yoke carries an adjusting-screw 58*, which works in screw-threads formed in the ends of the By this means it will be seen that moving the rollers 59 to and from the brushes 54, as desired.

A guard-plate 60, Figs. 4, 5, and), of sheet v metal, extends between the plates 51, and on said plates 51 are lugs 62, in which are swiveled adjusting-screws 63. These screws pass throng 1 the guard-plate at the sides and carry nuts 64, that bear on said guard-plate,

. whereby when the nuts are screwed up in the direction of the lugs the ends of the guardplate are pressed out and brought in the desired proximity to the brushes 54 for the pur ose of bringing the mop into contact wit the lowermost brush, as clearly shown in Fig. 9. y

' The round ends of the bar 52 are seated in vertical slots 65, formed in the sides of the tank 45, said slots terminating just above the lower edges of the plates 43, which serve to hold the bar 52-aga1nst lateral movement in the slots. The length of the bars 51 is so proportioned in regard to the depth of the tank that the lowermost roller 59 isheld near the bottom thereof and the uppermost gear 55 of one of the brushes meshes with'gear 37 on the squeezing-roller 36, which latter'receives motion through the medium of gearing driven bythe armature-shaft, as above described. v

When the machine is in operation, the lowermost brush 54 is rotated oy the uppermost brush through the medium. of sprocketwheels 56 and drive-chain 61, the lowermost brush only acting on an endless mo 56.

This mop passes from the floor on whic it is dragged first through one of a pair of guides or shields. 67, detachably hung from a rod- 67, extending between the plates 43, then bearingin notches 69 in the plates 43. On the axle of each guide-roller 68 is mounted a s rocket-wheel 70, connected by a dr1ve-.

7 3 on the axle of the lower squeezing-roller 40, which, as before described, is driven by the upper roller 36. From the roller 68 the mo descends into the tank 45 and passes 1111 4 er the lowermost idle roller 59, journaled in the plates 51, thence upward between the lowermost brush 54 and the spring guardplate 60. The mop then passes between the wringer-rolls 36 and 40 and under, but not in contact with, the upper rotating brush 54 and over the other end of the guard plate. to the second roller 58;, descending through the other detachable guide 67 to the floor. When the direction of travel of the machine is re-' the mop-frame, the rounded ends of the bar 52 will freel rotate in the slots 65. The upermost rol er'59, Fig. 9 is brought to the ottom of the tank-and becomes the guideroller for the mop, and its brush will engage the mop, while, the lowermost roller and brush, Fig, 9, will 'beswung up, and the gear on the latter will engage the gear on the up: per wringer-roller on the left. Spring-bolts 72 are mounted on yokes 58'and engage-socketsformed on, the upper edge of the frame 1 and lock the mop-frame to the tank. Braces 73 74 rise from the frame 1 and support a l shelf 75, on which is mounted a pail 7 6, proover one of a pair of guide-rollers 68, having c ain 71, that-is driven by a sprocket-wheel I15" versed and it becomes, desirable to reverse .vided with a spigot 77, connected by a ipe 78 to sprinkler-pipes 79 and 80, mounte re-' spectively, in frontof and behind the rotar scrubbing-brush 20. Each sprinkler is pre erably provided with a hand-valve 81 82, re-

spectlvely, by means of which water from the cured a rod 85, serving as a handle to guide the machine, and a rod 86 is pivoted on the armature-shaft and carries a s ring-urged pawl 87, that engages a toothe sector 88, fixed on the brush-frame 14, so that this frame, with-the brush, may be raised and lowered, being revolved about the armatureaxle as a center.- The pawl 87 is con ected by a wire 89 to a finger-grip 90, pivolied at 91 on the hlande ortion 92 of rod 86. An are '93 is mounte onthe braces 73 and 74 and has on one of its inner faces a toothed rack 94, Fig. 3, that engages teeth 95 on one side of the lever 86. The opposite side of the lever is provided with a leaf-spring 96, that bears on the opposite smooth face of the are and holds the lever in contact with the rack in any position. By pressing the lever against the s ring the teeth and rack'are disenga ed, an the lever'may be freely raised and owered.

Having thus described m invention, what 'I claim as new therein, an desire to secure by Letters Patent, is 1. In a scrubbing-machine, the combination with a tank and an endless mop adapted to be dragged on the floor, of means to guide the mop through the tank below the surface of water thel .n, means to brush the mop and means to wring the same after being brushed.

2. In a scrubbing-machine, the combination of a tank, an endless mop, a reversible frame for the mop mounted in said tank, a guide-roller for the mop at each end of the frame and abrush mounted contiguous to each roller adapted to alternately engage said 3.' In a scrubbing-machine, the combination with a tank and an endless mop surrounding the same, of feed-rollers for the mop, a guide-frame between the feed-rollers to guide the mop into the tank, a brush below the surface of water in the tank, a brush above said surface, a wringer between the brushes and means for holding the mop against. one of said brushes.

4. In a scrubbing-machine, the combination with the main frame, a tank mounted thereon, a Wringer mounted above the tank and means for o erating the wringer of an endless mop int e wringer, a frame in the tank to guide the mop, a brush in the guideframe engaging the mop before reaching the wringer, and means in the guide-frame for holding the mop in engagement with the engaging brush.

5. In a scrubbing-machine, the combination with the main frame, a tank mounted thereon, an endless mop surrounding said tank, feed-rollers mounted on the latter, of a guide-frame, idle rollers mounted in each end thereof, a brush in the frame near each roller, means in the frame for holding the mop in contact with one of the brushes, and means for driving the feed-roller and brushes.

6. In a scrubbing-machine, the combination with a tank, an endless mop, and rollers for feeding the mop, of a reversible frame, complrisingtwo side plates, a shaft connecting t e same, an idle roller in each end of the plates, brushes mounted between the rollers, and a guard-plate mounted in the frame between the brushes.

7. In a scrubbing-machine, the combination with a tank, an endless mop and rollers for feeding the latter into the tank, of a guide-frame comprising two sideplates, a central connectin shaft, an idle roller mounted between the' p ates at each end, a brush mounted in the plates next to each roller, means for adjusting said'rollers relatively to the brushes, a guard-plate mounted between the brushes, and means for adjusting) the end of the guard-plate to and from the rushes.

8. In a scrubbing-machine, the combination with the main frame and a tank mounted thereon, of wringer-rolls journaled above the tank, meansto rotate said rolls, a feedroller on each end of the tank, a drive-chain connecting one of the wringer-rolls with said feed-rolls, a guide-frame for the mop, brushes in said frame adjacent to said mop, and means for driving said brushes from the Wringer-rolls.

9. In a scrubbing-machine, the combination with a motor, of a w'ringer, and an endless mop driven by said motor and means to reverse the direction of motion of said mop and Wringer.

10. In a scrubbing-machine, the combination with a motor, of a wringer, an endless mop and traction-wheels, all driven by said motor, and means to reverse the direction of travel of the traction-wheels without revers ing the direction of travel of the mop and wrmger.

11. In a scrubbing-machine, the combination with a wheeled supporting-frame, a motor to propel the same, atank carried thereby, an endless mop adapted to be dragged on the floor, means operated by the motor to wrin the mop in the tank and means operatedday the wringer to brush the mop before being wrung.

ITO

12. In a scrubbing-machine, the combina tion with a motor, of a wringer geared thereto,-amo mop-feeding rol ers and a mopcleaning rush eared to the wringer.

l the first brush.'

14; In a scrubbing-machine, the combination with a supporting-frame, Wheels supporting the-same, a motor mounted thereon, and a tank carried by the frame, of a wringer and a scrubbing-brush driven by the motor, a reversible frame in the tank, a guide-roller and a cleanin -brush at each end of the frame, a sproc et-wheel on each cleaningbrush, a chain connecting the sprocket- Wheels, a gearwheel onone of the wringerrollers, an endlessmop jassing through the Wringer and between t e brushes, 'and a gear-Wheel on each cleaning-brush adapted to be engaged by the gear on the wringerroller.

15. In a scrubbing-machine, the combination with an endless mop and a tank throu h which the mop asses, of a wringer above t 'e tank, a reversible frame, guide rollers and .EMMOR .J. STEWART.

Witnesses OHAs. M. ARNOLD, Mrs. E. J. STEWART. 

